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Protect an Excel file - Microsoft Support
How to protect an Excel file using a password to prevent unwanted access to your data.
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Insert copyright and trademark symbols - Microsoft Support
Click a symbol in the immediate list, or click More Symbols, and then click the symbol you want.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 2013
Ways to count cells in a range of data - Microsoft Support
Excel contains several functions to help you count the number of cells in a range that are blank or contain certain types of data. Select the cell where you want the result to appear.
Applies To: Excel for Microsoft 365 for Mac, Excel 2021 for Mac, Excel 2019 for Mac
Mailbox storage limits in Outlook - Microsoft Support
Clean up Mailbox. From the Settings > Storage page you should see a breakdown of how much space each folder in your mailbox is taking. Below, you should see a list of the folders represented in the breakdown with the option to permanently delete all items (or those older than 3, 6, or 12 months) in these folders to free up space.
Applies To: Outlook Web App for Office 365, Outlook Web App for Office 365 Small Business, Outlook.com, New Outlook for Windows, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019, Outlook Web App
Check the recent sign-in activity for your Microsoft account
If you get an email about unusual activity on your Microsoft account, or if you’re worried that someone else might have used your account, go to the Recent activity page.You’ll see when your Microsoft account was signed in during the last 30 days, along with any device or app-specific info.
Applies To: Microsoft account dashboard
Reactivate an account that has been blocked - Microsoft Support
If you receive the message “Your account is currently unavailable" when you try to access your OneDrive, your account might have been temporarily blocked due to unusually large traffic volume, suspicious activity, or a violation of the Microsoft Services Agreement or code of conduct.
Applies To: OneDrive (home or personal), OneDrive for Mac, OneDrive for Windows
Manage updates in Windows - Microsoft Support
Windows 11 offers you the choice of when and how to get the latest updates to keep your device running smoothly and securely. If you're not ready to get recommended updates, you can choose to temporarily pause them from being downloaded and installed.
Apply or remove cell borders on a worksheet - Microsoft Support
Note: Cell borders that you apply appear on printed pages.If you do not use cell borders but want worksheet gridline borders to be visible on printed pages, you can display the gridlines. For more information, see Print with or without cell gridlines.
Applies To: Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
Use inbox rules in Outlook.com or Outlook on the web
Every rule needs at least three things: A name, a condition, and an action. Rules can also contain exceptions to conditions. You can add multiple conditions, actions, and exceptions at each step by choosing Add a condition, Add an action, and Add an exception.. If you don't want any more rules to run after this one does, select the Stop processing more rules check box.
Applies To: Outlook on the web, Outlook.com
Office Help & Training
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